Convertible engine for derricks and cableways.



No. 724,890. PATENTED APR'. 7, 190s.

A. LAMBERT.

CONVERTIBLE ENGINE vEOE. DERRIGKSNAND CAELEWAYS.

APPLIoATloN FILED Nov. 1s, 1902. No MODEL. 2 SHEETS-SHEET 1.

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No. 724,890. PATENTED APR. 7, 1903.

- A. LAMBERT.

CONVERTIBLE ENGINE EUR DERRIGKS AND CABLEWAYS.

APPLICATION FILED NOV. 13, 19.02.

.N0 MODEL. 2 SHEETS-SHEET 2.

W/ TNESSES:

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` and the drum is therefore concave.

UNITED 'STATESV PATENT OFFICE.

ASHER LAMBERT, OF NEWARK, NEW JERSEY.

CONVERTIBLE ENGINE FOR DERRICKS AND CABLEWAYS.

SPECIFICATION forming part of Letters Patent No. '524,890, dated April7, 1903. l Application iled November 13, 1902. Serial No. 131,190. (Noniodelfl l A To all whom, it 11mg concern..-

Be it known thatl', ASHER LAMBERT, acitizen of the United States, and a'resident of Newark, in the county of Essex and State of New Jersey, haveinvented new and useful Improvements in, Convertible Engines forDerricks and Oableways, of which the following is a full, clear, andexact description.

That my invention may be fully understood it is explained that inpractice the endless traversing rope or haul-rope of a cableway isgivena few turns around its drum,

In derrick-engines, on the contrary, the drums are cylindrical, theropes being wound up or allowed to unwind, as desired.- Again, the

Lambert cableway system enables a drum of large diameter to beemployedfor the traversing rope or haul-rope to obtain high speed oftravel for the carriage, while a drum in a corresponding position in aderrick is required to be of small diameter to-obtain power.

My invention provides means whereby a contractor can readily convert hiscablewayengine into a derrick-engine, and' vice-versa. My invention willbe particularly described hereinafter and then defined in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis speciiication, in which similar characters of reference indicatecorresponding parts in all the ligures.

Figure 1 is a side elevation of a cableway, showing diagrammatically anengine having differential drums arranged to actuate the traversing ropeor haul-rope and the hoisting-rope or fall-rope. Fig. 2 is a perspectiveviewof the engine, showing a compound drum embodying my invention. Fig.3 is a transverse sectional view of the pair of drums of the engine, thesectional exterior of the compound drum being shown in wend elevation;and Fig. 4 is a perspective view of one of the exterior sections of myimproved drum.

That the utility of my convertible engine may be the better understoodlhave illustrated in Fig. 1 a cableway having diiferential drums A B, thedrum A being the larger and serving to actuate at a high speed theendless traversing rope or haul-rope 10,which moves the carriage 15,while the smaller drum B is shown as arranged to actuate the fall-ropeor hoisting-rope 20. This cableway drum.

system is particularly described in an application iled by meconcurrently herewith, Serial No. 131,191. The drums A B (shown best inFigs. 2 and 3) are suitably driven and controlled by actuating andcontrolling devices of any well-known form. -As shown, the drums haveteeth o. b, which mesh with a pinion` C on a shaft C, said shaft beingdriven from the engine D in the usual manner. Therdrum A is made up ofa'cylindrical body or core A and a sectional cylindrical exterior shellor auxiliary drum 'A2. The body A' preferably is equal or nearly equalin diameter to the drum B vof the pair' and otherwise are lateralflanges a2, having holes d5 for receivingwthe bolts l-that clamp thesections together, and at each end of each section in line with the boreare -iianges a4, which when the sections are together form annularlianges at each'end. These annular flanges extend parallel with thecylindrical core or body A and serve to increase the bearing-surface ofthe sections As on said core A. The peripheral surface of the auxiliarydrum A2 is concaved to accommodate the endless traveling rope andprevent Vit from running off the y With an engine thus equipped whenemployed on a cableway the larger compound drum A ofthe pair receives,as stated, the endless traversing rope 10, which is given severalturns/around said drum and otherwise arranged in a well-known manner,while the fall-rope 20 is connected with the smaller drum B'. Thus thelarger drum may be made -to move the traversing rope at a high speed.

IOO

claim as ne\v and desire to secure by Letters Patentl. A convertibleengine for derricks and cableways, the same having a pair of drums, oneof which is a com pound drum, composed of a core or body having a formand completeness to constitute a drum of itself, and being of a diameterapproximately equal to that of the companion drum of the pair, and anauxiliary drum supported on and removably secured to the said core orbody and forming a drum of a greater diameter than the companion drum.

2. A convertible engine for derricks and cableWays, the same haviugapair of drums, one of which is a compound drum composed of a core orbody having a form and completeness to constitute a drum of itself, andbeing of a diameter approximately equal to that of the companion drum ofthe pair, and an auxiliary drum formed in sections supported on andremovablysecured to the said core or body and forming a drum of agreater diameter than the companion drum.

3. A convertible engine for derricks and cableways, the same having apair of drums, one of which is a compound drum, composed of a core orbody having a form and completeness to constitute a drum of itself, andbeing of a diameter approximately equal to that of the companion drum ofthe pair, and an auxiliary drum formed in sections supported on andremovably secured to the said core o1' body and forming a drum of agreater diameter than the companion drum, the said core or body havingflanges and the sectional auxiliary drum fitting between said flanges.

4t. A convertible engine for derricks and cableways, the same having apair of drums of which one is a compound drum and larger than the other,the said compound drum having a removable exterior peripherallyconcaved, and a core.

5. A convertible engine for derricks and cableways, the same having apair of drums of which one is a compound drum and larger than the other,the said compound drum having a removable exterior peripherallyconcaved, and a core, said core being cylindrical.

6. A convertibleengine for derricks and cableways, the same having apair of drums 'of which one is a compound drum and larger than theother, the said compound drum having a removable exterior peripherallyconcaved, and a core, said core being cylindrical and approximatelyequal in diameter to the smaller drum of the pair.

7. A convertible engine for derricks and cableways, the same having apair of drums of which one is a compound drum composed of a core and asectional shell, peripherally concaved and larger in diameter than thecompanion drum.

8. A convertible engine for derricks and cableways, the same having apair of drums of which one is a compound drum composed of a core and asectional shell, peripherally concaved and larger in diameter than thecompanion drum, the said core being approximately equal in diameter tothe said companion drum.

9. A convertible engine for derricks and cableways, the same having apair of drums of which one is a compound drum composed of a core and asectional shell, peripherally concaved and larger in diameter than thecompanion drum, the said core and the bore of the sectional shell beingcylindrical.

10. A convertible engine for derricks and cableways, the same having apair of drums of Which one is a compound drum composed of a core and aremovable exterior having a concaved periphery.

11. A convertible engine for derricks and cableways, the same having apair of drums of which one is a compound drum composed of a core and aremovable exterior having a concaved periphery, the said core having endflanges.

12. A convertible engine for derricks and cableways, the same having apair of drums of which one is a compound drum composed of a core and aremovable exterior having a concaved periphery, the said core having endfianges and being cylindrical.

13. A convertible engine for derricks and cableways, having a pair ofdrums, one of which is a compound drum composed of a cylindrical corehaving end flanges, and equal in diameter to the companion drum, and anauxiliary drum greater in diameter than the companion drum and composedof sections formed with anges at the bore and with side flanges, andmeans engaging said side flanges for securing the said sections togetherand to said core.

14a The combination with a core, of drumsections thereon, the saidsections having flan ges at the bore, forming an annular flangeprojecting concentric to the center of the drum, and means for securingsaid sections on the core.

15. An attachment forincreasing the diameter of a drum, said attachmentconsisting of sections having an ges on their opposed faces affording ameans for connecting the sections and having semicircular iianges at thebore.

16. The combination with a core, of drumsections thereon, the saidsections being concaved peripherally.

17. An attachment for increasing the diameter of a drum, consisting ofsections forming ahollow drum, the said sections having a concavedperiphery.

18. An attachment for increasing the diameter of a drum, consisting of adrum having a bore to receive the drum to be enlarged, and having aconcaved periphery, and means for removably securing said attachment ona drum.

19. A convertible drum, consisting of a core and a removable exteriorhaving a concaved periphery.

20. A convertible drum, consisting of a core IOO IIO

and a removable exterior having a eonoaved removably secured to thecore, the periphery periphery, the said core having end flanges of theremovable exterior being coneaved. between which the removable exterioris re- In testimony whereof I have signed my eeived. name to thisspecification in the presence of 5 21. Theherein-desoribed convertibledrum, two subscribing witnesses.

consisting of a eore having end anges and a sectional exterior removablysecured to the ASHER LAMB ERT' core. Witnesses:

22. Theherein-described convertible drum, F. W. LAMBERT, 1o consistingof a core and a sectional exterior T. M. WATSON, J r.

